router (T.I.R)run out

DECO CUE

DECO CUE

AzB Silver Member
Silver Member
I had been running my tapering lathe with a ridgid router (2401) and have been getting a bad finish lately come to find out that the bottom bearing is toast.
So I went a got a new performax router then decided to put .250 gage pin in it to inspect run out it was out(T.I.R) .008-.010 1" from collet decided it was not worth trying returned it and got bosch colt did the same inspection(T.I.R) .018-.020 1" from collet I am taking it back tonight.
I called bosch to see if maybe they knew of this and he told me the their tolerance was .005 he thinks right at collet.
I have new NTN bearings on order and once I get it back together I will inspect ridgid to see how much run out it has.
Has anyone else checked there routers and what results have you found on (T.I.R)run out ?.I do have a water cooled cnc spindle but I was going to use it for engraving project.

well as the old saying goes if you want something done right do it yourself.I went back to the performax router I figured out it was the collets that was giving it the most run out so I made a new collet out of soft tool steel and tighten up the tolerance also made it longer so there is almost 1"of .250 dia to hold router bit now I get about .003-.004 1" from collet.See video that is a .0001 indicator.
Eventually I will be using water cooled spindle instead of router.

https://www.youtube.com/watch?v=g7o9USTxSUg
*T.I.R total indicator reading
 
Last edited:
DECO CUE said:
I had been running my tapering lathe with a ridgid router (2401) and have been getting a bad finish lately come to find out that the bottom bearing is toast.
So I went a got a new performax router then decided to put .250 gage pin in it to inspect run out it was out(T.I.R) .008-.010 1" from collet decided it was not worth trying returned it and got bosch colt did the same inspection(T.I.R) .018-.020 1" from collet I am taking it back tonight.
I called bosch to see if maybe they knew of this and he told me the their tolerance was .005 he thinks right at collet.
I have new NTN bearings on order and once I get it back together I will inspect ridgid to see how much run out it has.
Has anyone else checked there routers and what results have you found on (T.I.R)run out ?.I do have a water cooled cnc spindle but I was going to use it for engraving project.

*T.I.R total indicator reading
Click to expand...

I alternate two different bosch colts on my taper lathe. I have never checked the run out on either one and can without any hesitation say that I get the best cuts [smoothest] on butts and shafts that I have with any other routers that I have ever used. [dewalts, black & decker, kress]
Set up and blades used are as important if not more important than the router itself.
I've replaced the top and bottom bearings in both of them after countless hours of use off the first sets. Bosch says you can change the bearings generally 2 times before the armature is usually toast. VXB bearing...I opted for the NSK brand [sealed} which are a much higher quality [and a little more expense] than the skate board bearing originally used.

Brushes are a breeze to change on the colts also as they require just a simple cap removal on the outside of the housing and pop out and pop in the new ones. No router disassemble required.

The bearing sizes elude me now and I looked for the info but can't find where I put it so I wouldn't lose it for the next time.
You'll have to pull the bearings and size them and call VXB as they did not have them listed on the web page at the time I needed them but had access to them.
The bearings are fairly simple to change out and took only a couple hours from start to finish and it was much cheaper than buying a new router! :)
I know you mentioned using a rigid but they're all primarily about the same construction wise.
 
DECO CUE said:
I had been running my tapering lathe with a ridgid router (2401) and have been getting a bad finish lately come to find out that the bottom bearing is toast.
So I went a got a new performax router then decided to put .250 gage pin in it to inspect run out it was out(T.I.R) .008-.010 1" from collet decided it was not worth trying returned it and got bosch colt did the same inspection(T.I.R) .018-.020 1" from collet I am taking it back tonight.
I called bosch to see if maybe they knew of this and he told me the their tolerance was .005 he thinks right at collet.
I have new NTN bearings on order and once I get it back together I will inspect ridgid to see how much run out it has.
Has anyone else checked there routers and what results have you found on (T.I.R)run out ?.I do have a water cooled cnc spindle but I was going to use it for engraving project.

*T.I.R total indicator reading
Click to expand...


That is on the high side, what you measured. My old Makita has a runout of about 0.04 mm at the collet and about 0.06mm 75mm out.
My cheap ozito's were about 0.15mm, so I set them up, and recut the inner taper on both of them.Then made new collets for 1/4 inch and 6mm.
With the new collets, my runout is less than 0.01 mm.
If the bearings are junk, the 1st thing you will see is movement in the spindle. I checked the side ways movement and inspected the bearings before reworking the spindle taper.
Neil
 
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